void QueryResultsNode::update(Snapshot &updates)
{
typedef QMap<QueryResultItem *, Union> Map;
qint32 lastColumn = columnCount(QModelIndex()) - 1;
QueryResultPropertyItem *property;
QueryResultItem *item;
Map map;
for (Snapshot::iterator i = updates.begin(), end = updates.end(); i != end; i = updates.erase(i))
{
item = (*i).first.as<QueryResultItem>();
property = static_cast<QueryResultPropertyItem *>(item->parent());
map[property].add(property->indexOf(item));
if (item->size())
{
beginRemoveRows(Model::index(item), 0, item->size() - 1);
static_cast<QueryResultRootPathValueItem *>(item)->update((*i).second);
endRemoveRows();
}
else
static_cast<QueryResultRootPathValueItem *>(item)->update((*i).second);
static_cast<QueryResultValueItem *>(item)->unlock();
}
for (Map::const_iterator i = map.constBegin(), end = map.constEnd(); i != end; ++i)
for (Union::List::size_type q = 0, size = (*i).size(); q < size; ++q)
emit dataChanged(createIndex((*i).at(q).top(), 0, i.key()->at((*i).at(q).top())),
createIndex((*i).at(q).bottom(), lastColumn, i.key()->at((*i).at(q).bottom())));
}
